/Engine/Plugins/Experimental/SlateScreenReader/Source/SlateScreenReader/Public/SlateScreenReaderEngineSubsystem.h
ActivateUser()
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="SlateScreenReader") [FScreenReaderReply](API\Plugins\ScreenReader\GenericPlatform\FScreenReaderReply) RegisterUser ( UPARAM(DisplayName="Screen Reader User Id") int32 InUserId )